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Part number: 31345295
Product Details
Dart 31345295 Short Blocks
Products specifications
Cam Bearings Included Yes
Cyl Bore 4.125in
Cylinder Bore as Shipped 4.125 in.
Deck 9.2in
Deck Height (in) 9.200 in.
Engine Block Material Aluminum
Engine Block Style Aftermarket
Finished Cylinder Bores Yes
Freeze Plugs Included Yes
Main Bearings Included No
Main Bolt Style 4-bolt
Main Cap Fasteners Included Yes
Main Cap Material Steel billet
Main Caps Included Yes
Main Journal Type 351 Cleveland mains
Quantity Sold individually.
Raised Cam Location No
Rear Main Seal Style 2-piece
Tool Stroker Combinations
Aluminum Ford Small Block
351 Mains

With pressed-in dry sleeves, upgraded oiling and steel 4 bolt main caps, Darts aluminum blocks have the features that Ford racers need to build reliable and affordable engines.

Features:

  • Premium alloy: Dart aluminum blocks are cast from virgin 355-T61 aerospace alloy for superior strength and integrity.
  • Siamesed cylinders: Standard 4.000 or 4.125 cylinders can be safely bored to 4.165 diameter. Ductile iron sleeves and extra thick walls prevent cracking and produce excellent ring seal.
  • Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to prevent detonation, extend engine life and produce consistent cylinder temperatures.
  • 4 bolt billet steel main caps. Three center caps have splayed outer bolts for extra strength; rear cap uses standard one piece seal.
  • Two main bearing diameters 302 (2.249) or 351C (2.749) allow choice of small or large journal camshaft.
  • Provisions for stock motor mounts, accessory drives, smog pumps, starter brackets, oil pans and pumps.
  • Upgraded oiling system has a complete stock type system plus a low restriction priority main oiling system with front and rear external oil pump feeds.
  • Dual crossovers allow oil flow to be metered with restrictors for roller lifter cams and/or rocker roller arms to reduce oil flow and windage.
  • Reinforced head bolt bosses are blind tapped to prevent leaks and produce accurate torque readings. Extra thick decks prevent head gasket leaks.
  • Includes coated cam bearings, freeze plugs and dowels.
  • Machined with front and rear external oil feed, crossover and restrictor provision.
  • Dart blocks are available fully finish prepped.
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